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annotate main.c @ 168:9d3c91a30fe3

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Added tag 0.6 for changeset c11f86db4550cac5d0a648a3fe4d6d3b9a4fcf7e
author arg@10ksloc.org
date Wed, 02 Aug 2006 16:52:21 +0200
parents a6a31e485fbd
children e848966a1ac6
rev   line source
garbeam@0 1 /*
garbeam@0 2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
garbeam@0 3 * See LICENSE file for license details.
garbeam@0 4 */
garbeam@0 5
garbeam@76 6 #include "dwm.h"
garbeam@59 7 #include <errno.h>
garbeam@0 8 #include <stdio.h>
garbeam@0 9 #include <stdlib.h>
garbeam@57 10 #include <string.h>
garbeam@59 11 #include <unistd.h>
arg@138 12 #include <sys/select.h>
garbeam@0 13 #include <X11/cursorfont.h>
garbeam@0 14 #include <X11/Xatom.h>
garbeam@0 15 #include <X11/Xproto.h>
garbeam@0 16
garbeam@84 17 /* static */
garbeam@0 18
arg@123 19 static int (*xerrorxlib)(Display *, XErrorEvent *);
garbeam@75 20 static Bool otherwm;
garbeam@0 21
garbeam@0 22 static void
garbeam@76 23 cleanup()
garbeam@76 24 {
garbeam@76 25 while(sel) {
arg@99 26 resize(sel, True, TopLeft);
garbeam@76 27 unmanage(sel);
garbeam@76 28 }
garbeam@76 29 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
garbeam@76 30 }
garbeam@0 31
garbeam@0 32 static void
garbeam@75 33 scan()
garbeam@0 34 {
garbeam@0 35 unsigned int i, num;
arg@123 36 Window *wins, d1, d2;
garbeam@0 37 XWindowAttributes wa;
garbeam@0 38
garbeam@0 39 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
garbeam@0 40 for(i = 0; i < num; i++) {
garbeam@0 41 if(!XGetWindowAttributes(dpy, wins[i], &wa))
garbeam@0 42 continue;
garbeam@0 43 if(wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
garbeam@0 44 continue;
garbeam@0 45 if(wa.map_state == IsViewable)
garbeam@10 46 manage(wins[i], &wa);
garbeam@0 47 }
garbeam@0 48 }
garbeam@0 49 if(wins)
garbeam@0 50 XFree(wins);
garbeam@0 51 }
garbeam@0 52
garbeam@13 53 static int
garbeam@13 54 win_property(Window w, Atom a, Atom t, long l, unsigned char **prop)
garbeam@13 55 {
arg@123 56 int status, format;
arg@123 57 unsigned long res, extra;
garbeam@13 58 Atom real;
garbeam@13 59
garbeam@13 60 status = XGetWindowProperty(dpy, w, a, 0L, l, False, t, &real, &format,
garbeam@13 61 &res, &extra, prop);
garbeam@13 62
garbeam@13 63 if(status != Success || *prop == 0) {
garbeam@13 64 return 0;
garbeam@13 65 }
garbeam@13 66 if(res == 0) {
garbeam@13 67 free((void *) *prop);
garbeam@13 68 }
garbeam@13 69 return res;
garbeam@13 70 }
garbeam@13 71
garbeam@76 72 /*
garbeam@76 73 * Startup Error handler to check if another window manager
garbeam@76 74 * is already running.
garbeam@76 75 */
garbeam@76 76 static int
garbeam@76 77 xerrorstart(Display *dsply, XErrorEvent *ee)
garbeam@76 78 {
garbeam@76 79 otherwm = True;
garbeam@76 80 return -1;
garbeam@76 81 }
garbeam@76 82
garbeam@84 83 /* extern */
garbeam@84 84
garbeam@84 85 char stext[1024];
arg@146 86 int tsel = DEFTAG;
garbeam@84 87 int screen, sx, sy, sw, sh, bx, by, bw, bh, mw;
garbeam@84 88 Atom wmatom[WMLast], netatom[NetLast];
garbeam@84 89 Bool running = True;
garbeam@84 90 Bool issel = True;
garbeam@84 91 Client *clients = NULL;
garbeam@84 92 Client *sel = NULL;
garbeam@84 93 Cursor cursor[CurLast];
garbeam@84 94 Display *dpy;
garbeam@84 95 DC dc = {0};
garbeam@84 96 Window root, barwin;
garbeam@76 97
garbeam@13 98 int
garbeam@75 99 getproto(Window w)
garbeam@13 100 {
garbeam@13 101 int protos = 0;
garbeam@13 102 int i;
arg@123 103 long res;
arg@123 104 unsigned char *protocols;
garbeam@13 105
garbeam@77 106 res = win_property(w, wmatom[WMProtocols], XA_ATOM, 20L, &protocols);
garbeam@13 107 if(res <= 0) {
garbeam@13 108 return protos;
garbeam@13 109 }
garbeam@13 110 for(i = 0; i < res; i++) {
garbeam@77 111 if(protocols[i] == wmatom[WMDelete])
arg@157 112 protos |= PROTODELWIN;
garbeam@13 113 }
garbeam@13 114 free((char *) protocols);
garbeam@13 115 return protos;
garbeam@13 116 }
garbeam@13 117
garbeam@13 118 void
garbeam@74 119 sendevent(Window w, Atom a, long value)
garbeam@13 120 {
garbeam@13 121 XEvent e;
garbeam@13 122
garbeam@13 123 e.type = ClientMessage;
garbeam@13 124 e.xclient.window = w;
garbeam@13 125 e.xclient.message_type = a;
garbeam@13 126 e.xclient.format = 32;
garbeam@13 127 e.xclient.data.l[0] = value;
garbeam@13 128 e.xclient.data.l[1] = CurrentTime;
garbeam@13 129 XSendEvent(dpy, w, False, NoEventMask, &e);
garbeam@79 130 XSync(dpy, False);
garbeam@13 131 }
garbeam@13 132
garbeam@76 133 void
garbeam@76 134 quit(Arg *arg)
garbeam@75 135 {
garbeam@76 136 running = False;
garbeam@75 137 }
garbeam@75 138
garbeam@75 139 /*
garbeam@84 140 * There's no way to check accesses to destroyed windows, thus those cases are
garbeam@84 141 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
garbeam@84 142 * default error handler, which calls exit().
garbeam@0 143 */
garbeam@10 144 int
garbeam@75 145 xerror(Display *dpy, XErrorEvent *ee)
garbeam@0 146 {
garbeam@75 147 if(ee->error_code == BadWindow
arg@123 148 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
arg@123 149 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
arg@123 150 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
arg@123 151 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
arg@123 152 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
arg@123 153 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess))
garbeam@0 154 return 0;
garbeam@34 155 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
arg@123 156 ee->request_code, ee->error_code);
garbeam@75 157 return xerrorxlib(dpy, ee); /* may call exit() */
garbeam@27 158 }
garbeam@27 159
garbeam@0 160 int
garbeam@0 161 main(int argc, char *argv[])
garbeam@0 162 {
arg@138 163 int i;
arg@123 164 unsigned int mask;
garbeam@59 165 fd_set rd;
arg@164 166 Bool readin = True;
garbeam@0 167 Window w;
garbeam@5 168 XEvent ev;
arg@123 169 XSetWindowAttributes wa;
garbeam@0 170
arg@137 171 if(argc == 2 && !strncmp("-v", argv[1], 3)) {
arg@137 172 fputs("dwm-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
arg@137 173 exit(EXIT_SUCCESS);
garbeam@0 174 }
arg@137 175 else if(argc != 1)
arg@137 176 eprint("usage: dwm [-v]\n");
garbeam@0 177
garbeam@0 178 dpy = XOpenDisplay(0);
garbeam@0 179 if(!dpy)
garbeam@75 180 eprint("dwm: cannot connect X server\n");
garbeam@0 181
garbeam@0 182 screen = DefaultScreen(dpy);
garbeam@0 183 root = RootWindow(dpy, screen);
garbeam@0 184
garbeam@0 185 /* check if another WM is already running */
garbeam@75 186 otherwm = False;
garbeam@75 187 XSetErrorHandler(xerrorstart);
garbeam@0 188 /* this causes an error if some other WM is running */
garbeam@0 189 XSelectInput(dpy, root, SubstructureRedirectMask);
garbeam@78 190 XSync(dpy, False);
garbeam@0 191
garbeam@75 192 if(otherwm)
garbeam@75 193 eprint("dwm: another window manager is already running\n");
garbeam@0 194
garbeam@78 195 XSetErrorHandler(NULL);
garbeam@75 196 xerrorxlib = XSetErrorHandler(xerror);
garbeam@0 197
garbeam@0 198 /* init atoms */
garbeam@77 199 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
garbeam@77 200 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
garbeam@77 201 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
garbeam@77 202 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
garbeam@77 203 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
garbeam@77 204 PropModeReplace, (unsigned char *) netatom, NetLast);
garbeam@0 205
garbeam@0 206 /* init cursors */
garbeam@0 207 cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
garbeam@0 208 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
garbeam@0 209 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
garbeam@0 210
garbeam@73 211 grabkeys();
garbeam@0 212
garbeam@5 213 /* style */
garbeam@74 214 dc.bg = getcolor(BGCOLOR);
garbeam@74 215 dc.fg = getcolor(FGCOLOR);
garbeam@74 216 dc.border = getcolor(BORDERCOLOR);
garbeam@74 217 setfont(FONT);
garbeam@5 218
garbeam@57 219 sx = sy = 0;
garbeam@57 220 sw = DisplayWidth(dpy, screen);
garbeam@57 221 sh = DisplayHeight(dpy, screen);
garbeam@57 222 mw = (sw * MASTERW) / 100;
garbeam@5 223
garbeam@57 224 wa.override_redirect = 1;
garbeam@57 225 wa.background_pixmap = ParentRelative;
garbeam@58 226 wa.event_mask = ButtonPressMask | ExposureMask;
garbeam@57 227
garbeam@57 228 bx = by = 0;
garbeam@57 229 bw = sw;
garbeam@57 230 dc.h = bh = dc.font.height + 4;
garbeam@57 231 barwin = XCreateWindow(dpy, root, bx, by, bw, bh, 0, DefaultDepth(dpy, screen),
garbeam@57 232 CopyFromParent, DefaultVisual(dpy, screen),
garbeam@57 233 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
garbeam@57 234 XDefineCursor(dpy, barwin, cursor[CurNormal]);
garbeam@57 235 XMapRaised(dpy, barwin);
garbeam@57 236
garbeam@60 237 dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
garbeam@60 238 dc.gc = XCreateGC(dpy, root, 0, 0);
garbeam@74 239 drawstatus();
garbeam@60 240
garbeam@57 241 issel = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask);
garbeam@21 242
arg@123 243 wa.event_mask = SubstructureRedirectMask | EnterWindowMask | LeaveWindowMask;
garbeam@0 244 wa.cursor = cursor[CurNormal];
garbeam@0 245 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
garbeam@0 246
garbeam@57 247 strcpy(stext, "dwm-"VERSION);
garbeam@75 248 scan();
garbeam@3 249
garbeam@59 250 /* main event loop, reads status text from stdin as well */
garbeam@5 251 while(running) {
garbeam@59 252 FD_ZERO(&rd);
arg@164 253 if(readin)
arg@164 254 FD_SET(STDIN_FILENO, &rd);
garbeam@59 255 FD_SET(ConnectionNumber(dpy), &rd);
garbeam@59 256
garbeam@59 257 i = select(ConnectionNumber(dpy) + 1, &rd, 0, 0, 0);
garbeam@59 258 if(i == -1 && errno == EINTR)
garbeam@59 259 continue;
garbeam@59 260 if(i < 0)
garbeam@75 261 eprint("select failed\n");
garbeam@59 262 else if(i > 0) {
garbeam@64 263 if(FD_ISSET(ConnectionNumber(dpy), &rd)) {
garbeam@64 264 while(XPending(dpy)) {
garbeam@64 265 XNextEvent(dpy, &ev);
garbeam@64 266 if(handler[ev.type])
garbeam@64 267 (handler[ev.type])(&ev); /* call handler */
garbeam@64 268 }
garbeam@59 269 }
arg@164 270 if(readin && FD_ISSET(STDIN_FILENO, &rd)) {
arg@164 271 readin = NULL != fgets(stext, sizeof(stext), stdin);
arg@164 272 if(readin)
arg@164 273 stext[strlen(stext) - 1] = 0;
arg@162 274 else
arg@164 275 strcpy(stext, "broken pipe");
garbeam@74 276 drawstatus();
garbeam@59 277 }
garbeam@59 278 }
garbeam@5 279 }
garbeam@0 280
garbeam@0 281 cleanup();
garbeam@0 282 XCloseDisplay(dpy);
garbeam@0 283
garbeam@0 284 return 0;
garbeam@0 285 }